General

  • Target

    e37fb378417b8fc6a9871251030b3294fedecf4608d528f4cfddac6a8005f164.zip

  • Size

    679KB

  • Sample

    230612-h31lyabe81

  • MD5

    15b2af08485f71a391e7afc502a4ec8b

  • SHA1

    cc310ad66c3744bfeba632830ed6edfcdf89b8c6

  • SHA256

    f3cdb6093f9ef1933ec6b3b3a2aa8189ebd07f903d9bf2a47a0a29f09b2e6be6

  • SHA512

    5ac86cb2e294c5180738282052b11782cf71910dad66cb5f8e6d4fcebfaa27e5fe8ed4f1adcac329432c73673eb6a1f4c5c1caa33bfc2ee6d3a8d3252a06ac69

  • SSDEEP

    12288:Btv/llVVUIVoCxJ9c+Dqev1i31DaE0M79kghaZKtCBVKSOnFviddXAzD8gU9:BltW+DM3kM5NyKtC21qdoZU9

Malware Config

Targets

    • Target

      e37fb378417b8fc6a9871251030b3294fedecf4608d528f4cfddac6a8005f164

    • Size

      946KB

    • MD5

      7d7b37ae6ef1219f3094f2cf6206d29a

    • SHA1

      54fa5fd704ad0d67d27ae163d752fac1cc1c95be

    • SHA256

      e37fb378417b8fc6a9871251030b3294fedecf4608d528f4cfddac6a8005f164

    • SHA512

      b6357a18ebaa24c036f1e7cc6a37923a1b732531d20b47f4be88af983a744d8cd19e9e5d9d081c2f39735fc37c0734b28f9fae6deac2d0587d9bf9d6dedb5acc

    • SSDEEP

      24576:/1s40GUw9hXVWvcvocIGEUYbC/B391IbV4:/b0o9CIp2bC/B39kV4

    • MassLogger

      Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

    • MassLogger Main payload

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Accesses Microsoft Outlook profiles

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Tasks